Patents by Inventor Seisuke Satoh

Seisuke Satoh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for manufacturing citric acid from olefins by fermentation
    Patent number: 4180626
    Abstract: The present invention relates to a microbiological process for the production of citric acid by assimilation of olefins. Normal olefins of C.sub.8-40 produced from thermal cracking of petroleum wax or from polymerization of ethylene are suitable as carbon source for this fermentation process. Said process is carried out by culturing the microorganism selected from the group of Candida tropicalis, Candida intermedia and Candida brumptii, their mutants and their variants in the culture medium containing acid olefins. Citric acid is accumulated in said medium in the process of the culture.The most suitable strain utilized in the present invention is Candida tropicalis, their mutants and their variants.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: December 25, 1979
    Assignee: Showa Oil Co., Ltd.
    Inventors: Takeo Nagata, Seisuke Satoh, Takao Matsumoto